<template>
  <div id="app">
    <el-card shadow="always">
    <el-form :inline="true" size="medium" :model="studentSearch" class="demo-form-inline">

            <el-form-item >
              <el-input v-model="studentSearch.sname" placeholder="学生姓名"></el-input>
            </el-form-item>
              <el-form-item >
                <el-input v-model="studentSearch.addr" placeholder="学生住址"></el-input>
              </el-form-item>
            <el-form-item >
              <el-select v-model="studentSearch.cid" placeholder="所在班级">
                <el-option label="所有班级" value="0"></el-option>
                <el-option :label="c.cname" :value="c.cid" v-for="c in classesList" :key="c.cid"></el-option>
              </el-select>
            </el-form-item>
            <el-form-item>
              <el-button type="primary" icon="el-icon-search"  plain @click="search">查询</el-button>
            </el-form-item>
            </el-form>
      <el-table
          :data="studentList"
          style="width: 100%">
        <el-table-column
            label="学号"
            prop="sid"
            align="center"
            width="180">
        </el-table-column>
        <el-table-column
            label="姓名"
            align="center"
            prop="sname">
        </el-table-column>
        <el-table-column
            label="性别"
            align="center"
            prop="sex">
        </el-table-column>
        <el-table-column
            label="年龄"
            align="center"
            prop="age">
        </el-table-column>
        <el-table-column
            label="住址"
            align="center"
            prop="addr">
        </el-table-column>
        <el-table-column
            label="所在班级"
            align="center"
            prop="cname">
        </el-table-column>
        <el-table-column label="操作" align="center">
          <template slot-scope="scope">
            <el-button
                size="mini"
                @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
            <el-button
                size="mini"
                type="danger"
                @click="handleDelete(scope.$index, scope.row)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>


            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="page"
                :page-sizes="[5, 10, 15, 20]"
                :page-size="pageSize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
    </el-card>
  </div>
</template>



<script>
import studentApi from "@/api/student";
import classesApi from "@/api/classes"

export default {
  data() {
    return {
      studentList: [],
      page: 1,
      pageSize: 5,
      total: 100,
      studentSearch:{},
      classesList:[],
    }
  },
  created() {

      this.search()
      this.findAllClasses()
    },
    methods: {

      async findStudents() {
        const {data:res} = await studentApi.findAllStudents()
        console.log(res)
        if (data.code === 200) {
          this.studentList = res.data.list
        }
      },

      async findByPage() {
        const {data:res} = await studentApi.findByPage(this.page,this.pageSize)
        console.log(res)
        if (res.code === 200) {
          this.studentList = res.data.pr.rows
          this.total = res.data.pr.total
        }
      },

      async findAllClasses() {
        const {data:res} = await classesApi.findAllClasses()
        console.log(res)
        if (res.code === 200) {
          this.classesList = res.data.list
        }
      },

      async search(){
        const {data:res} = await studentApi.search(this.page,this.pageSize,this.studentSearch)
        console.log(res)
        if (res.code === 200) {
          this.studentList = res.data.pr.rows
          this.total = res.data.pr.total
        }
      },

      handleSizeChange(val) {
        this.pageSize = val

        this.search()
        console.log(`每页 ${val} 条`);
      },

      handleCurrentChange(val) {
        this.page = val

        this.search()
        console.log(`当前页: ${val}`);
      },
      handleEdit(index, row) {
        console.log(index, row);
      },
      handleDelete(index, row) {
        console.log(index, row);
      }
    }
  }

</script>

<style>
#app{
  display: flex;
  justify-content: center;

}

.el-card{
  width: 90%;
}
.el-pagination{
    margin-top: 20px;
    text-align: right;
  }
</style>
